I would have thought the limiting values would be the same, as there's no reason I can see to remove them during a performance remap. So in theory, yes, it would still work in the desert/arctic, although you wouldn't still have all the power if one of these limiting values was triggered. Those "safety" maps are still present and active. Is it not the same as limp mode? Ie doesn't matter about the conditions, if x-value is reached then limp mode will be engaged.
I think we can make a lot more from these engines with big boost, which is why i'm so excited by what Darren's doing. Ok it's not the same as one of the HDi guys doing it, but the basic theory should still apply. As you say, the only reason manufacturers don't go for the massive cylinders pressures and high temp burns is for emissions reasons.
I don't agree about your summary on DI injection pressures though, if that was the case why would so many manufacturers be using common rail, the lowest of which uses up to 1200bar of fuel pressure...? I think the PD engines use 2200bar at peak, no? Again, the old TDi's didn't have to compete with the same level of emissions restrictions and the like. Same goes for injection timing, run more advance and you start seeing big increases Nox and carbon monoxide emissions.
I'd also be very interested to see if anyone has reached that point. I've got say, would be very surprised if it was below anything that manufacturers have put on the road up to this point, so i reckon we've got at least 2k bar to play with!
I think we can make a lot more from these engines with big boost, which is why i'm so excited by what Darren's doing. Ok it's not the same as one of the HDi guys doing it, but the basic theory should still apply. As you say, the only reason manufacturers don't go for the massive cylinders pressures and high temp burns is for emissions reasons.
I don't agree about your summary on DI injection pressures though, if that was the case why would so many manufacturers be using common rail, the lowest of which uses up to 1200bar of fuel pressure...? I think the PD engines use 2200bar at peak, no? Again, the old TDi's didn't have to compete with the same level of emissions restrictions and the like. Same goes for injection timing, run more advance and you start seeing big increases Nox and carbon monoxide emissions.
I'd also be very interested to see if anyone has reached that point. I've got say, would be very surprised if it was below anything that manufacturers have put on the road up to this point, so i reckon we've got at least 2k bar to play with!